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| Phone | ZTE Obsidian | Sony Ericsson K850 | AT&T Calypso |
| Current U.S. Carriers | (none) | (none) | (none) |
| Global Availability | Released | Released | Released |
| Specifications | |||
|---|---|---|---|
| Display Size |
4.5" diag. 16 : 9 |
2.2" diag. 4 : 3 |
5.5" diag. 18 : 9 |
| Display Resolution & Type |
480 x 854 pixels (~218 ppi) LCD (TFT/TFD) |
240 x 320 pixels (~182 ppi) LCD (TFT/TFD) |
480 x 960 pixels (~195 ppi) LCD (TFT/TFD) |
| Display Refresh | 60 Hz | ? | 60 Hz |
| Battery | 1,800 mAh | ? | 2,500 mAh |
| Processor | 1 GHz MediaTek / MT6735M | ? | 1.5 GHz MediaTek MT6739 |
| RAM | 1 GB | ? | 1 GB |
| Storage | 8 GB | ? raw hardware | 16 GB |
| Main Camera | 5 megapixel | 5 megapixel | 5 megapixel |
| Wide Camera | - | - | - |
| Tele Camera | - | - | - |
| Video Capture | 720p HD | ? | 1080p HD |
| Front Camera | 2 megapixel | - | 5 megapixel |
| Weight |
4.66 oz (132g) |
4.2 oz (119g) |
6 oz (170g) |
| Dimensions |
5.41" x 2.7" x 0.39" (137 x 69 x 10 mm) |
4" x 1.9" x 0.7" (102 x 48 x 17.8 mm) |
5.91" x 2.87" x 0.39" (150 x 73 x 9.9 mm) |
| Form Factor | Slab | Slab | Slab |
| Platform / OS | Android | (proprietary) | Android |
| Network Bands |
4G LTE: 2, 4, 12 WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900 |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
4G LTE: 2, 4, 5, 12, 14, 30 WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900 |
| Data Technology | LTE (Cat 4) | HSDPA 3.6 | LTE (Cat 4) |
| Features | |||
| Flashlight | Yes | - | Yes |
| GPS / Location | n/a | - | n/a |
| Accessibility | |||
| Adjustable Text Size | n/a | - | n/a |
| Hearing Aid Compatible |
Yes M4, T3 (mostly tele-coil compatible) |
- |
Yes M3, T4 (very tele-coil compatible) |
| Multiple Languages | n/a | Yes | n/a |
| TTY/TDD (Digital) | Yes | Yes | Yes |
| Alerts | |||
| Ringer Profiles | - | Yes | - |
| Connectivity | |||
| Bluetooth | Yes | Yes | Yes |
| Mobile Hotspot | n/a | - | n/a |
| USB |
Yes Micro-USB |
Yes |
Yes USB Type C |
| Wi-Fi |
Yes 4 (802.11 b,g,n) |
- |
Yes 4 (802.11 b,g,n) |
| Contacts | |||
| Picture ID | n/a | Yes | n/a |
| Ringer ID | n/a | Yes | n/a |
| Voice Dialing | n/a | Yes | n/a |
| Customization | |||
| Custom Graphics | n/a | Yes | n/a |
| Custom Ringtones | n/a | Yes | n/a |
| Real-Music Ringers | n/a | Yes | n/a |
| Data & Network | |||
| Data Tethering | n/a | Yes | n/a |
| WAP / Web Browser | n/a | Yes | n/a |
| Input | |||
| Predictive Text Entry | n/a | Yes | n/a |
| Side Keys | Yes | Yes | Yes |
| Touch Screen |
Yes Capacitive |
- |
Yes Capacitive |
| Memory | |||
| Memory Card Slot | Yes | Yes | Yes |
| Messaging | |||
| Email Client | n/a | Yes | n/a |
| Instant Messaging | n/a | - | n/a |
| MMS | n/a | Yes | n/a |
| Text Messaging Templates | n/a | Yes | n/a |
| Music | |||
| FM Radio | - | Yes | - |
| Headphone Jack (3.5mm) | Yes | - | Yes |
| Music Player | n/a | Yes | n/a |
| Photo & Video | |||
| Video Calling | n/a | Yes * | n/a |
| Productivity | |||
| Alarm | n/a | Yes | n/a |
| Calculator | n/a | Yes | n/a |
| Calendar | n/a | Yes | n/a |
| To-Do List | n/a | Yes | n/a |
| Voice Memo | n/a | Yes | n/a |
| Software | |||
| Games | n/a | Yes | n/a |
| Java (J2ME) | n/a | Yes | n/a |
| Voice | |||
| HD Voice | - | - | Yes |
| Speaker Phone | Yes | Yes | Yes |
| * Some versions only | |||
| ZTE Obsidian | Sony Ericsson K850 | AT&T Calypso | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | ZTE Obsidian | Sony Ericsson K850 | AT&T Calypso |
